Homotopy properties of categories of extensions. (English) Zbl 0624.18005

Retakh, V. S.

Russ. Math. Surv. 41, No. 6, 217-218 (1986).

Translation from Usp. Mat. Nauk 41, No.6(252), 179-180 (Russian) (1986; Zbl 0614.18010).

MSC:

18G15	Ext and Tor, generalizations, Künneth formula (category-theoretic aspects)
55P10	Homotopy equivalences in algebraic topology
55P65	Homotopy functors in algebraic topology

Keywords:

abelian category; category of extensions; homotopy equivalence functor